Industry Facility-University Application Air conditioner in library providing a vital flow of air to the books and other resource materials stored in the facility and runs 24 hours a day. Original Drive Description A variable pitch belt drive operates an air conditioning unit with four B66 V-Belts. This air unit, powered by a 30 HP motor at 1,750 rpm. Problem The original V- belts had to be replaced every 3-6 months due to s

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